You can now choose the latest Node.js v6 version for your apps. This is the Long Term Support version purported to receive LTS maintenance until 2019-04-01, so you should make the change. You will also get a lot of improvements and new features:

The new Web IDE allows you to view and edit your files using a browser from everywhere through the Cloudnode Developer Shell. You have Linux tools, Cloudnode tools and Docker at your fingertips no matter what client computer you are using.

The Web IDE is based on Eclipse Orion, which aims to give you an always accessible development environment without setup and configuration. The Orion service runs on your VM as long as your shell is running.

You can now manage your apps and databases no matter where you are. Building
on the ability to open a shell from the browser we are launching Cloudnode
Developer Shell, which extends from just a VM to all aspects of the platform.

We have expanded our data layer. You can now provision a MongoDB for your apps the same way
you have been doing for CouchDB and Redis. This significantly expands the range of apps you
can run on our platform without relying on third parties.

MongoDB comes free with every Cloudnode account including backup services.